Republican Mike Pence - already in Virginia - giving a hint what he'll focus on tonight: "Hillary Clinton's record on foreign affairs alone could take up the whole 90 minutes," said Pence.

Democrat Tim Kaine is off the campaign trail... Presumably getting ready for his one and only debate.

At times, both have disagreed with their running mates.

Tonight, Pence may find himself on defense: "I knew how to use the tax code to rebuild my company when others didn't have a clue," said Donald Trump, (R) Presidential Nominee.

The New York Times report on Donald Trump's 1995 tax return has him explaining why he took such a big loss -- nearly a billion dollars in one year - qualifying for nearly two decades of zero taxes. "What kind of genius loses a billion dollars in the first place?" said Hillary Clinton, (D) Presidential Nominee.